If it is an automatic transmission the problem will be a split cooling tank that is inside one of the radiator tanks the fix is a new radiator and a full flush of the cooling system
as there is no other connection between oil and water other than the oil cooler in the tank, I suggest that you find an accredited shop that knows how to test the cooler in the tank or rather just replace the radiator with a new oneas there is no other connection between oil and water other than the oil cooler in the tank, I suggest that you find an accredited shop that knows how to test the cooler in the tank or rather just replace the radiator with a new one
Answers & Comments
If it is an automatic transmission the problem will be a split cooling tank that is inside one of the radiator tanks
the fix is a new radiator and a full flush of the cooling system
as there is no other connection between oil and water other than the oil cooler in the tank, I suggest that you find an accredited shop that knows how to test the cooler in the tank or rather just replace the radiator with a new one
HOW MANY INTER COOLERS ARE FOUND IN VOLVO C70 MODEL 2006 T5?